BMI 15: What It Means
A BMI of 15 is classified as underweight according to the World Health Organisation (WHO) BMI scale.
- Underweight: BMI below 18.5
- Normal weight: BMI 18.5–24.9
- Overweight: BMI 25–29.9
- Obese: BMI 30 and above
Consider consulting a doctor about healthy weight gain strategies.